Cavity-enhanced absorption for optical refrigeration
classification
⚛️ physics.optics
keywords
absorptionopticalachieveactiveanalyzedappliedbeencavity
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A 20-fold increase over the single path optical absorption is demonstrated with a low loss medium placed in a resonant cavity. This has been applied to laser cooling of Yb:ZBLAN glass resulting in 90% absorption of the incident pump light. A coupled-cavity scheme to achieve active optical impedance matching is analyzed.
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